Question

решите все -8*х=-104
-0,1*х=-1,3
2,6+х=-13
13-х=-3

Answer 1

-8*х=-140
х=-140+8
х=-132

-0.1*х=-1.3
х=-1.3+0.1
х=-1.2

2.6+х=-13
х=-13-2.6
х=-15.6

13-х=-3
-х=-3+13
-х=10
х=-10